CBSE
Chromosomes can be stained with one of the following chemicals
acetocarmine
safranine
light green
eosin
Most simple amino acid is
lysine
glycine
aspartic acid
nucleic acid
The length of DNA having 23 base pair is
78 Ao
78.4 Ao.
74.8 Ao
78.2Ao
Sex factor in bacteria is
F-replicon
chromosomal replicon
RNA
sex pillies
Which of the following be named for DNA produced from RNA?
A- DNA
B- DNA
C- DNA
Z- DNA
Number of nitrogenous bases in a codon is
3
2
1
5
Which of the following is structural subunit of DNA?
Protein
Carbohydrate
RNA
Nucleotide
In a DNA molecule, distance between two bases is
2 nm/ 20 Å
0.2 nm/ 2 Å
3.4 nm/ 34 Å
0.34 nm/ 3.4 Å
Balbiani rings are the sites of
DNA replication
RNA and protein synthesis
synthesis of lipids
synthesis of polysaccharides
In the lactose operon of Escherichia coli what is the function of promoter
Binding of Gyrase enzyme
Binding of RNA polymerase
Codes for RNA polymerase
Processing of messenger RNA